Welcome. I also loved the struggling shunter video. As I watched it I was wondering "what happens next?" :- a broken coupling perhaps?
Then I began to wonder if once the little shunter had got the big shunter moving, it would then have to stop it, and there would be a shot of the little shunter gracefully sliding down the hill with its wheels locked.
At some places I know, the guy in the orange boiler suit would have tried to push it